JP6286466B2 - Finger mounted toothbrush - Google Patents

Description

  The present invention relates to a finger-mounted toothbrush used by being mounted on a finger.

  2. Description of the Related Art Conventionally, finger toothbrushes that are used by attaching to fingers are known (for example, Patent Documents 1 to 3). Since the finger toothbrushes described in Patent Literatures 1 to 3 are used by being attached to a finger, they are excellent in operability and are preferably used for dental care. However, the finger toothbrushes described in Patent Documents 1 to 3 rotate with respect to the attached finger during use, and there is a problem that it is difficult to use.

  On the other hand, in the finger toothbrush described in Patent Document 4, the main body portion is formed in a U-shaped groove shape, and the finger inserted into the main body portion comes to be sandwiched in the U-shaped groove shape. The U-shaped groove-shaped main body part is difficult to rotate with respect to the finger, and the usability is improved.

  Similarly, the finger toothbrush described in Patent Document 5 has a cap part for inserting a finger and a holding part that guides along the inner side of the finger. When the finger toothbrush is attached, the holding part reaches the palm of the hand. Since it is formed so as to reach, the cap portion is difficult to rotate with respect to the inserted finger, and the usability is improved.

JP 2005-253872 A Registered Utility Model Publication No. 3005004 Japanese Utility Model Publication No. 6-57229 Japanese Patent Laid-Open No. 5-4016 Japanese National Patent Publication No. 10-503409

  However, since the U-shaped groove is formed over the entire length of the main body portion, the finger toothbrush described in Patent Document 4 is easy to enter saliva inside the main body portion during use, and is attached by the saliva that has entered. Again, it rotates with respect to the finger, making it difficult to use. There was also a problem with hygiene. Furthermore, Patent Document 4 does not give any consideration to the ease of removing the U-shaped groove-shaped main body portion attached to the finger after use.

  In the finger toothbrush described in Patent Document 5, it is necessary to keep pulling the finger toothbrush during use between the index finger inserted into the cap part and the thumb that hooks the holding part. There is also a problem that it is difficult to hook the holding portion on the thumb and it is difficult to wear it.

  Therefore, the present invention relates to providing a finger-mounted toothbrush that can solve the above problems.

  The present invention relates to a bag-like main body portion made of a soft resin that can be attached to a finger by inserting a finger from an opening portion on one end side of the tube portion toward a closing portion on the other end side, and a tube portion of the main body portion A finger-worn toothbrush comprising a brush portion disposed in one side region in the circumferential direction of the body portion, at least on the side where the brush portion is disposed in the body portion, in the direction opposite to the body portion. It has a tongue piece portion extending, and the tongue piece portion is formed of the same resin as the main body portion, and provides a finger-mounted toothbrush formed integrally with the main body portion.

  According to the finger mounting toothbrush of the present invention, it is easy to mount, the cap part is difficult to rotate with respect to the inserted finger, and the usability is improved. Moreover, according to the finger-mounted toothbrush of the present invention, it is easy to remove the main body mounted on the finger after use.

FIG. 1 is a perspective view of a finger-mounted toothbrush according to a first preferred embodiment of the present invention. FIG. 2 is a front view of the finger-mounted toothbrush of the first embodiment shown in FIG. FIG. 3 is a side view of the finger-mounted toothbrush of the first embodiment shown in FIG. FIG. 4 is a partially enlarged view of the brush portion of the finger-mounted toothbrush of the first embodiment shown in FIG. FIG. 5 is a diagram showing a usage state of the finger-mounted toothbrush of the first embodiment shown in FIG. FIG. 6 is a perspective view of a finger-mounted toothbrush according to a second preferred embodiment of the present invention. FIG. 7 is a front view of the finger-mounted toothbrush of the second embodiment shown in FIG. FIG. 8 is a side view of the finger-mounted toothbrush of the second embodiment shown in FIG. FIG. 9 is a diagram for explaining a usage state of the finger-mounted toothbrush of the second embodiment shown in FIG. FIG. 10 is a perspective view of a finger-mounted toothbrush according to a third preferred embodiment of the present invention. FIG. 11 is a front view of the finger-mounted toothbrush of the third embodiment shown in FIG. FIG. 12 is a side view of the finger-mounted toothbrush of the third embodiment shown in FIG. FIG. 13 is a diagram for explaining a use state of the finger-mounted toothbrush of the third embodiment shown in FIG. FIG. 14 is a perspective view of a finger-mounted toothbrush according to another preferred embodiment of the present invention. FIG. 15 is a view showing another embodiment of the finger-mounted toothbrush of the present invention. FIG. 16 is a diagram showing another embodiment of the finger-mounted toothbrush of the present invention. FIG. 17 is a view showing another embodiment of the finger-mounted toothbrush of the present invention. FIG. 18 is a diagram showing another embodiment of the finger-mounted toothbrush of the present invention. FIG. 19 is a perspective view of a finger-mounted toothbrush set having the finger-mounted toothbrush of the first preferred embodiment of the present invention and a storage stick for storing the finger-mounted toothbrush. FIG. 20 is an explanatory view for storing a finger-mounted toothbrush set in which a storage stick is inserted into the finger-mounted toothbrush according to the first preferred embodiment of the present invention. FIG. 21 is a perspective view of another storage stick.

Hereinafter, a finger-mounted toothbrush of the present invention will be described based on a preferred first embodiment with reference to FIGS.
As shown in FIGS. 1 to 3, the finger-mounted toothbrush 1 </ b> A of the first embodiment (hereinafter also simply referred to as “finger-mounted toothbrush 1 </ b> A”) is closed from the opening 21 on one end side of the cylindrical portion to the other end side. A bag-shaped main body portion 2 made of a soft resin that can be inserted into the finger by touching the portion 22 until it hits the portion 22, and a brush portion 3 disposed in one region in the circumferential direction C of the cylindrical portion of the main body portion 2; It has. Further, the finger-mounted toothbrush 1 </ b> A has a tongue piece 4 that extends from the opening 21 in the direction opposite to the main body 2 on at least the side of the main body 2 where the brush 3 is disposed.
In the following description, as shown in FIG. 1 to FIG. 3, the direction from the opening 21 of the main body 2 into which the finger is inserted to the closing portion 22, that is, the axial direction of the cylindrical portion and the axial direction of the finger mounting toothbrush 1 </ b> A, The description will be made in the Y direction, and the width direction of the main body 2 and the width direction of the finger-mounted toothbrush 1A perpendicular to the Y direction will be described as the X direction. In the Y direction, it is preferable that the brush portion 3 is provided on the closing portion 22 side on the other end side of the cylindrical portion. Further, the thickness direction, which is a direction orthogonal to the surface direction composed of the axial direction (Y direction) and the width direction (X direction) of the main body 2 is described as the Z direction. In the Z direction, the direction in which the one side region in which the brush part 3 is arranged is described as the upper side.

  As shown in FIGS. 1 to 3, the main body 2 of the finger-worn toothbrush 1 </ b> A has an annular opening 21 on one end side in the Y direction. The main body 2 has a bag-like finger sack shape that is inserted into the finger (index finger) by inserting a finger, preferably the index finger from the opening 21 until it hits the blocking portion 22 on the other end side. (See FIG. 5).

  For example, when the index finger is inserted as shown in FIG. 5, the main body 2 has an axial length equal to or longer than the length from the tip of the index finger to the second joint and from the tip of the index finger to the base. It is preferable that the length in the Y direction from the inner surface of the closing portion 22 on the other end side of the main body portion 2 to the opening portion 21 is about 40 mm to 80 mm. preferable. In addition, the finger sack-shaped main body 2 of the finger-mounted toothbrush 1 </ b> A has a cylindrical portion of the main body 2 that is not easily rotated with respect to the index finger during use, for example, when an index finger is inserted. It is preferable that the inner diameter gradually decreases from the other end toward the other end. Designed to be unisex, designed slightly loose for standard female index finger, designed exactly for standard male index finger, and tight for male index finger thicker than standard male Specifically, the inner diameter at the opening 21 of the main body 2 is preferably about 15 mm to 27 mm, and more preferably 18 mm to 25 mm. The inner diameter of the brush portion 3 of the main body 2 (more precisely, the inner diameter of the brush portion 3 on the side of the opening 21 in the Y direction) is preferably about 12 mm to 24 mm, and preferably 15 mm to 23 mm. Is preferred.

  The main body 2 has a hardness based on JIS K6253-3 (2012 edition) from the viewpoint of easy operation of the finger-mounted toothbrush 1A following the movement of the finger and from the viewpoint of adhesion to the finger. However, it is preferably 30 or more and 50 or less, more preferably 30 or more and 45 or less, and further preferably 30 or more and 40 or less. Here, the hardness based on JIS K6253-3 can be measured with a durometer. Moreover, it is preferable that the thickness of the main-body part 2 is about 0.5 mm-2.5 mm. The material of the soft resin constituting the main body 2 is preferably a rubber material selected from silicon rubber, isoprene rubber, fluorine rubber, styrene / butadiene rubber, acrylonitrile / butadiene rubber, ethylene propylene rubber, butylene rubber, and urethane rubber. And a rubber material selected from isoprene rubber is more preferable, and in this embodiment, the rubber material is formed of silicon rubber.

  Moreover, as for the main-body part 2 of 1 A of finger-fitting toothbrushes, it is preferable that the inner surface which inserts a finger is formed in the embossed surface. When the inner surface of the main body 2 is formed with a textured surface, it is easy to insert a finger into the main body 2, and it is easy to extract the finger inserted into the main body 2 after using the finger-mounted toothbrush 1 </ b> A. The embossed surface is formed of fine irregularities, and the maximum depth of the concave portions is, for example, 100 μm or less, preferably 10 μm or less. The irregularities on the textured surface preferably form, for example, a mesh, a dot pattern, a stripe pattern, or the like. Moreover, it is preferable that the outer surface of the main body 2 of the finger-fitting tooth brush 1 </ b> A is formed as a textured surface in addition to the inner surface into which fingers are inserted. If it is formed with a textured surface, it can be easily pulled out from the mold at the time of molding even though it is a soft resin, so that the productivity can be improved. Therefore, it is easy to insert and remove the finger.

  As shown in FIGS. 1 to 3, the brush portion 3 is a region near the other end portion side in the Y direction of the main body portion 2, and is disposed in one side region in the circumferential direction C of the cylindrical portion of the main body portion 2. ing. Here, the one side region in the circumferential direction C means, for example, the upper side in the Z direction in the finger-mounted toothbrush 1A as shown in FIG. The brush portion 3 of the finger-attached toothbrush 1 </ b> A includes a pedestal 31 in a part of the surface of the main body portion 2, preferably a region that protrudes with a certain thickness on the surface of the main body portion 2, and outward (finger The mounting toothbrush 1 </ b> A has a plurality of brush protrusions 32 protruding outward in the Z direction). In the finger-mounted toothbrush 1 </ b> A, the brush portion 3 including the base 31 and the plurality of brush protrusions 32 is provided in one side region (upper region in the Z direction) in the circumferential direction C on the other end side in the Y direction of the main body 2. It is integrally molded. As described above, in the finger-mounted toothbrush 1 </ b> A, it is preferable that the brush portion 3 including the base 31 and the plurality of brush protrusions 32 and the main body portion 2 are integrally formed.

  In the finger-mounted toothbrush 1 </ b> A, the pedestal 31 is preferably formed with a uniform thickness. The thickness of the pedestal 31 is the thickness from the inner peripheral surface of the main body 2 to the surface of the pedestal 31, and is a region where the pedestal 31 is provided in the main body 2, and the brush protrusion 32 is provided. There is no wall thickness in the area. The thickness of the pedestal 31 is preferably 0.5 mm or more and 3 mm or less, and more preferably 0.5 mm or more and 2 mm or less. Here, the uniform thickness of the pedestal 31 means that the thickness of each part of the pedestal 31 is in the range of about 90% to 110% with respect to the average thickness of the pedestal 31. Thus, when the thickness of the pedestal 31 is formed uniformly, the contact of the brush projections 32 with the teeth or gums tends to be uniform, and the feeling of use is improved. From the same viewpoint, as shown in FIG. 1, the pedestal 31 follows the surface shape of the pedestal 31 in the circumferential direction C of the main body 2 and the curved surface on the other end side in the Y direction of the main body 2. It is preferably formed with a curved surface, that is, a curved surface imitating the tip of a finger inserted into the main body 2.

As shown in FIG. 3, the finger-mounted toothbrush 1 </ b> A has a plurality of brush protrusions 32 that are integrally raised from the Z-direction upper surface of the base 31. Each of the brush protrusions 32 preferably has a shape in which the cross-sectional area decreases from the pedestal 31 toward the outside (tip), more preferably a conical shape, and the tip of the brush protrusion 32 is chamfered, More preferably, it is formed in a convex hemisphere above the Z direction, which is the direction of the tip. As shown in FIG. 2, the plurality of brush protrusions 32 are preferably arranged at a predetermined equal pitch in each of the X direction and the Y direction of the pedestal 31. The plurality of brush protrusions 32 are preferably provided, for example, at about 20 / cm ^{2 to} 36 / cm ² . In addition, it is preferable in terms of molding that the plurality of brush protrusions 32 are arranged in a lattice shape.

  As shown in FIG. 4, each brush protrusion 32 is uniformly formed with a length (height) h <b> 1 in the Z direction from the upper surface (surface) of the pedestal 31, specifically, 1 mm or more and 5 mm or less. It is preferable that it is 2 mm or more and 4 mm or less. Here, the length (height) h1 in the Z direction of the brush projections 32 is uniform. The height h1 of each brush projection 32 is 90% of the average length (height) in the Z direction. It means within a range of about ~ 110%. As described above, when the height h1 of the brush projection 32 is uniform, the contact of the brush projection 32 with the teeth or gums tends to be uniform, and the usability is improved. As described above, each brush projection 32 has a conical shape that is long in the Z direction, and its tip is formed in a hemispherical shape convex upward in the Z direction. As shown in FIG. 4, each brush projection 32 has a hemispherical tip portion having a diameter L2 smaller than a diameter L1 at the root portion, and the diameter L2 is preferably 30% to 70% of the diameter L1. It is preferable to be formed to the following extent.

  As shown in FIG. 1, the virtual surface IF formed by connecting the tips of the plurality of brush protrusions 32 tends to make the contact of the brush protrusions 32 with the teeth or gums more uniform, thereby improving the feeling of use. It is formed with a curved surface following the surface shape of 31. As described above, since the shape of the pedestal 31 is formed by a curved surface that follows the fingertips of fingers inserted into the main body 2, the virtual surface IF formed by connecting the tips of the plurality of brush protrusions 32 is also the main body 2. It is formed with a curved surface imitating the fingertips of the fingers to be inserted.

  The pedestal 31 and the brush protrusion 32 have a hardness of 30 or more and 50 or less based on JIS K6253-3 (2012 edition) from the viewpoint of improving the gum massage effect and improving the brushing effect. Preferably, it is 30 or more and 45 or less, and more preferably 30 or more and 40 or less. The material of the soft resin constituting the pedestal 31 and the brush protrusion 32 is a rubber material selected from silicon rubber, isoprene rubber, fluorine rubber, styrene / butadiene rubber, acrylonitrile / butadiene rubber, ethylene propylene rubber, butylene rubber, and urethane rubber. A rubber material selected from silicon rubber and isoprene rubber is more preferable, and in this embodiment, the rubber material is formed of silicon rubber.

  As shown in FIGS. 1 to 3, the tongue piece portion 4 is provided on the side where the brush portion 3 is arranged in the circumferential direction C of the main body portion 2 (upper side in the Z direction) from the opening 21 to the main body portion 2 in the Y direction. It extends to the opposite side. For example, when the index finger is inserted into the main body 2, the tongue piece 4 preferably has a length that is longer than the base of the index finger and extends to the palm side, specifically, the opening 21 of the main body 2. The length in the Y direction (maximum length) from the edge to the opposite edge is preferably about 10 mm to 50 mm, and more preferably 15 mm to 40 mm. The tongue piece 4 is a portion that can be sandwiched between the base of the index finger or the base of the index finger of the palm and the thumb when the main body 2 of the finger-attached toothbrush 1A is attached to the index finger, for example (see FIG. 5). The opening 21 of the main body 2 is an opening through which fingers can be inserted, and is also a boundary between the main body 2 and the tongue piece 4 and from the other end that is the closing portion 22 of the main body 2. The shortest distance to the opening 21 is defined as the boundary between the main body 2 and the tongue piece 4, and the length (maximum length) of the tongue piece 4 in the Y direction is the opening of the tongue piece 4 from this boundary. The length is the length up to the edge opposite to the portion 21.

  The tongue piece 4 of the finger-fitting toothbrush 1 </ b> A is formed of the same resin as the main body 2 and is formed integrally with the main body 2. As shown in FIG. 1, the tongue piece portion 4 of the finger-attached toothbrush 1A has a dome shape in which the outer edge shape of the end region 4T opposite to the main body portion 2 in the Y direction is curved along the surface of the finger to be inserted. Preferably it is formed.

  In the finger-fitting toothbrush 1 </ b> A, the tongue piece 4 is preferably formed with a uniform thickness, and the thickness of the tongue piece 4 is preferably about 0.8 mm to 3 mm. Here, that the thickness of the tongue piece 4 is uniform means that the thickness of each part of the tongue piece 4 is in the range of about 90% to 110% with respect to the average thickness (thickness in the Z direction). Means that. The tongue piece portion 4 is preferably formed so that the average thickness thereof is larger than the average thickness of the main body portion 2 from the viewpoint of more reliably preventing the rotation of the main body portion 2 during use. From the viewpoint of the balance between prevention of rotation of the part 2 and prevention of cracks and tearing between the main body part 2, the average thickness of the main body part 2 (thickness in the Z direction) is in the range of 1 to 2 times. It is preferable that the range is 1.2 times or more and 1.8 times or less.

  It is preferable that the part 41 located in the boundary with the opening part 21 in the tongue piece part 4 has a length in the range of 30% to 80% of the entire circumference of the opening part 21 of the main body part 2. More preferably, the length is in the range of 40% to 50%.

  The tongue piece portion 4 of the finger-fitting toothbrush 1 </ b> A has a constricted portion 42 that is curled inward in the vicinity of the boundary with the opening portion 21 at both side edges along the Y direction of the tongue piece portion 4. In other words, the pair of constricted portions 42, 42 are concavely convex toward the center line extending in the Y direction of the finger-worn toothbrush 1 </ b> A at the portion near the opening 21 on both side edges along the Y direction of the tongue piece portion 4. It is formed into a shape. The interval between the constricted portions 42 is preferably a length in the range of 20% to 45% of the entire circumference of the opening 21 of the main body 2, and a length in the range of 30% to 40%. Is preferred.

  The tongue piece 4 has a hardness based on JIS K6253-3 (2012 edition) of 30 from the viewpoint of being easily pinched by the thumb at the base of the index finger when the body 2 of the finger-attached toothbrush 1A is attached to the index finger, for example. It is preferably 50 or more, more preferably 30 or more and 45 or less, and further preferably 30 or more and 40 or less.

A method of using the finger-mounted toothbrush 1 </ b> A according to the first embodiment of the present invention described above and operational effects when used will be described.
As shown in FIGS. 1 and 5, the finger-attached toothbrush 1 </ b> A is attached by simply inserting a finger, particularly the index finger, from the opening 21 of the main body 2, so that it can be easily attached. Further, as shown in FIG. 5, for example, as shown in FIG. 5, the finger-fitting toothbrush 1A has a tongue piece portion near the thumb of the index finger or the base of the index finger of the palm when the main body 2 of the finger-attached toothbrush 1A is attached to the index finger. Since 4 can be pinched | interposed, it is hard to rotate with respect to the mounted | worn finger during use, and a usability | use_condition improves. In addition, the finger-mounted toothbrush 1 </ b> A has the tongue piece 4 extending from the opening 21 of the main body 2 after use, and can easily remove the main body 2 mounted on the finger. Furthermore, since the main body portion 2 and the tongue piece portion 4 are integrally formed in the finger-mounted toothbrush 1A, it is difficult to tear off from the boundary portion during use, and the usability is improved. In addition, when a user's index finger is thin, the tongue piece part 4 can also be folded in the inside of the main-body part 2, and the main-body part 2 can be closely_contact | adhered to an index finger by folding.

  Since the finger-attached toothbrush 1A has a pair of constricted portions 42 and 42 on the tongue piece portion 4, when the main body portion 2 of the finger-attached toothbrush 1A is attached to the index finger, the opening portion of the cylindrical main body portion 2 is opened. 21, the tongue piece 4 can be reasonably brought into close contact with the surface of the slightly flat palm, and the tongue piece 4 can easily come into close contact from the vicinity of the base of the index finger of the palm to the side of the palm.

  Next, finger-fitting toothbrushes according to second to third embodiments of the present invention will be described. The finger-mounted toothbrushes 1B to 1C of the second to third embodiments are different from the finger-mounted toothbrush 1A of the first embodiment in the shape of the tongue piece portion 4. Regarding the finger-attached toothbrushes 1B to 1C of the second to third embodiments, differences from the finger-attached toothbrush 1A of the first embodiment will be mainly described, and the same points will be denoted by the same reference numerals and description thereof will be omitted. . For the points not particularly mentioned, the description regarding the finger-mounted toothbrush 1 </ b> A of the first embodiment is applied as appropriate.

  As shown in FIGS. 6 to 9, the finger-attached toothbrush 1 </ b> B of the second embodiment includes a tongue piece portion 4, a first tongue piece portion 4 </ b> A on the side where the brush portion 3 in the body portion 2 is disposed, and a body portion. 2 has a second tongue piece portion 4B which is disposed in the other region in the circumferential direction C and extends from the opening portion 21 to the opposite side of the main body portion 2 in the Y direction. The first tongue piece 4A of the finger-mounted toothbrush 1B is formed in the same manner as the tongue piece 4 of the finger-mounted toothbrush 1A of the first embodiment.

  As shown in FIG. 9, the second tongue piece 4B is folded inside the main body 2 through the boundary of the opening 21 before the main body 2 of the finger-mounted toothbrush 1B is attached to the finger. When attaching the main body 2 of the finger-fitting toothbrush 1A, the index finger and the main body 2 are brought into close contact with each other due to the thickness of the second tongue piece 4B. The opening 21 is an end of the main body 2 where the first tongue piece 4A and the second tongue piece 4B are not provided and a circumferential region including the end.

  As shown in FIGS. 6 to 8, the second tongue piece portion 4 </ b> B is opened in the other side region in the circumferential direction C of the main body portion 2 (on the opposite side to the side where the brush portion 3 is arranged, the lower side in the Z direction). It is formed to extend from the portion 21 to the opposite side of the main body portion 2 in the Y direction. As shown in FIG. 7, the second tongue piece portion 4B of the finger-worn toothbrush 1B extends from the opening portion 21 to the edge of the second tongue piece opposite to the Y-direction opening portion 21. The length (maximum length) is formed to be approximately the same as the extension length of the first tongue piece 4A.

  The second tongue piece 4B of the finger-fitting toothbrush 1B is formed integrally with the main body 2 in the same manner as the first tongue piece 4A.

  In the finger-mounted toothbrush 1B, the second tongue piece 4B has a uniform thickness, and the thickness is preferably about 0.8 mm to 3 mm, preferably about 1 mm to 2.5 mm. It is preferable that Here, the uniform thickness of the second tongue piece 4B means that the thickness of each part of the second tongue piece 4B is within a range of about 90% to 110% with respect to the average thickness. Means. The second tongue piece portion 4B has an average thickness of the main body portion 2 from the viewpoint of making the average thickness easy to fold inside the main body portion 2 and improving the adhesion according to the thickness of the user's finger. It is preferably formed to be thicker than the thickness (thickness in the Z direction). Specifically, the thickness is in the range of 1 to 2 times the average thickness (thickness in the Z direction) of the main body 2. The range is preferably 1.2 times or more and 1.8 times or less.

  As shown in FIG. 6, the second tongue piece portion 4 </ b> B has the same contour as that of the first tongue piece portion 4 </ b> A. It is preferable that the part 41 located in the boundary with the opening part 21 in the 2nd tongue piece part 4B is the length of the range of 30% or more and 50% or less of the perimeter of the opening part 21 of the main-body part 2, and this all More preferably, the length is in the range of 35% to 50% of the circumference.

  Similar to the first tongue piece 4A, the second tongue piece 4B of the finger-worn toothbrush 1B is inwardly in the vicinity of the boundary with the opening 21 at both side edges along the Y direction of the second tongue piece 4B. It has the constricted part 42b and 42b. In other words, the pair of constricted portions 42b and 42b are convex toward the center line extending in the Y direction of the finger-attached toothbrush 1B at the portion near the opening 21 on both side edges along the Y direction of the second tongue piece portion 4B. It is formed in a recessed shape. The interval between the constricted portions 42b is preferably in the range of 20% to 45% of the entire circumference of the opening 21 of the main body portion 2, and is in the range of 30% to 40%. Is preferred.

  The hardness of the second tongue piece portion 4B is the same as the hardness of the first tongue piece portion 4A, and the material of the soft resin that constitutes the second tongue piece portion 4B is also the soft resin that constitutes the first tongue piece portion 4A. It is the same as the material and is the same as the material of the soft resin that constitutes the main body 2.

The effect at the time of using the finger mounting toothbrush 1B of 2nd Embodiment mentioned above is demonstrated.
About the effect of finger-fitted toothbrush 1B, a different point from the effect of finger-fitted toothbrush 1A is demonstrated. The points that are not particularly described are the same as the effects of the finger-mounted toothbrush 1A, and the description of the effects of the finger-mounted toothbrush 1A is appropriately applied.

  As shown in FIG. 9, the finger-mounted toothbrush 1 </ b> B includes, for example, the first tongue piece 4 </ b> A that can be sandwiched between the base of the index finger and the thumb when the body 2 of the finger-mounted toothbrush 1 </ b> A is mounted on the index finger. Since it also has a second tongue piece portion 4B that is used by being folded in advance inside the main body portion 2 and makes the index finger and the main body portion 2 closely contact each other, the second tongue piece portion 4B is provided as a main subject according to the thickness of the finger. 2 can be folded back, even when a user with a thin finger is used, it is more difficult to rotate with respect to the attached finger during use, and the feeling of use is further improved.

  Next, as shown in FIGS. 10 to 13, the finger mounting toothbrush 1 </ b> C of the third embodiment has a tongue piece portion 4 that is a brush portion 3 in the main body portion 2, similar to the finger mounting toothbrush 1 </ b> B of the second embodiment. The first tongue piece portion 4A on the side on which the main body portion 2 is arranged and the second tongue piece portion 4B which is arranged in the other side region in the circumferential direction C of the main body portion 2 and extends from the opening portion 21 in the opposite direction to the main body portion 2 in the Y direction. And have. The first tongue piece 4A of the finger-mounted toothbrush 1C is formed in the same manner as the tongue piece 4 of the finger-mounted toothbrush 1A of the first embodiment.

  The second tongue piece portion 4B of the finger attachment toothbrush 1C of the third embodiment is formed in the same manner as the second tongue piece portion 4B of the finger attachment toothbrush 1B of the second embodiment except that the length in the Y direction is different. Has been. As shown in FIGS. 10 to 12, the second tongue piece portion 4 </ b> B of the finger-attached toothbrush 1 </ b> C is formed so that its extension length is longer than the extension length of the first tongue piece portion 4 </ b> A. Is preferably in the range of 1.5 to 4 times the extension length of the first tongue piece 4A, more preferably in the range of 2 to 3 times, and the length in the Y direction. Is preferably about 25 mm to 60 mm, more preferably about 30 mm to 40 mm.

The effect at the time of using the finger mounting toothbrush 1C of 3rd Embodiment mentioned above is demonstrated.
About the effect of finger-fitting toothbrush 1C, a different point from the effect of finger-fitting toothbrush 1A, 1B is demonstrated. The points that are not particularly described are the same as the effects of the finger-mounted toothbrushes 1A and 1B, and the description of the effects of the finger-mounted toothbrushes 1A and 1B is appropriately applied.

  Since the finger-attached toothbrush 1C can adjust the area of the second tongue piece 4B that is folded back into the main body 2 according to the thickness of the user's finger, the main body according to the thickness of the finger It becomes possible to adjust the adhesion of No. 2, and the rotation prevention performance with respect to the attached finger can be improved during use regardless of the thickness of the finger, and the usability can be further improved.

  The finger-mounted toothbrush of the present invention is not limited to the finger-mounted toothbrushes 1A to 1C of the first to third embodiments described above, and can be changed as appropriate. Moreover, each component in the finger-mounted toothbrushes 1A to 1C of the above-described first to third embodiments can be implemented in combination as appropriate without departing from the spirit of the present invention.

  For example, in the finger-mounted toothbrushes 1A to 1C of the first to third embodiments described above, the pedestal 31 is formed thick as shown in FIGS. 3, 6, and 10, but the pedestal 31 is the main body. The pedestal 31 in this case is a virtual region that connects the outer circumferences of the outermost brush projections 32 of the plurality of brush projections 32.

  Moreover, in the finger-mounted toothbrushes 1A to 1C of the first to third embodiments described above, as shown in FIGS. 2, 7, and 11, the tongue piece 4 (first tongue piece 4A, second tongue piece). The constricted portions 42 and 42b are formed in the portion 4B), but the constricted portions 42 and 42b may not be formed. Moreover, the shape of the constricted parts 42 and 42b of the tongue piece part 4 (1st tongue piece part 4A, 2nd tongue piece part 4B) is the convex shape curved inward as shown in FIG.2, FIG.7, FIG.11. For example, a shape that is sharply bound in a slit shape inward as shown in FIG. 14 may be used. A finger-mounted toothbrush 1A ′ shown in FIG. 14 is a modification of the finger-mounted toothbrush 1A of the first embodiment. Note that the dome shape of the Y-direction rear end region 4T of the tongue piece 4 may be appropriately changed in the length in the circumferential direction C of the main body 2 as in the modification shown in FIG.

  In the finger-mounted toothbrushes 1A to 1C of the first to third embodiments described above, as shown in FIGS. 1, 6 and 10, the tongue piece 4 (first tongue piece 4A and second tongue piece 4B). ) May be provided with a through hole 44 penetrating in the Z direction so that a string or the like can be passed therethrough. If the through-hole 44 is provided and a string etc. are passed, it will be convenient to store the finger-mounted toothbrushes 1A to 1C.

  Furthermore, as an embodiment of the finger-mounted toothbrush of the present invention, the embodiments shown in FIGS. 15, 16, 17, and 18 may be adopted.

The finger-mounted toothbrushes 1A to 1C of the first to third embodiments described above are provided as a finger-mounted toothbrush 10 that is a set of the finger-mounted toothbrushes 1A to 1C and a storage stick 5 that stores the finger-mounted toothbrushes 1A to 1C. In this case, the above-described various effects are achieved, and it can be stored hygienically, which is preferable.
FIG. 19 shows a finger-mounted toothbrush set 10 including a finger-mounted toothbrush 1A and a storage stick 5 that is inserted through the opening 21 of the finger-mounted toothbrush 1A and stores the finger-mounted toothbrush 1A.

  As shown in FIG. 19, the storage stick 5 has a rod-like (cylindrical) shape that is longer than the length in the axial direction (Y direction) of the finger-mounted toothbrush 1A. The end portion on the insertion side of the finger-mounted toothbrush 1 </ b> A, which is one end portion of both ends of the rod-shaped storage stick 5, is formed in a spherical shape. Note that both ends of the storage stick 5 may be formed in a spherical shape. The storage stick 5 preferably has a length in the Y direction (axial length) of 1.5 to 3 times that of the finger-mounted toothbrush 1A, and a length of 120 to 220 mm. The length of 150 mm to 200 mm is preferable.

  The finger-mounted toothbrush set 10 inserts the storage stick 5 from the opening 21 of the finger-mounted toothbrush 1A and, for example, leans against a toothbrush stand or leans against a cup as shown in FIG. Can be stored hygienically.

  Although the storage stick 5 shown in FIG. 19 is formed in a columnar shape, it may be formed in a plate shape as shown in FIG. 21 (a) or as shown in FIG. 21 (b). Moreover, it may be formed in a straw shape (hollow bar shape).

1A, 1B, 1C Finger-attached toothbrush 2 Main body part 21 Opening part 22 Blocking part 3 Brush part 31 Base 32 Brush projection 4 Tongue piece part 41 Position located at the boundary 42 Constricted part 4T Rear end region 4A First tongue piece part 4B Second tongue piece 42b Constricted part 5 Storage stick 10 Finger-mounted toothbrush set

Claims (13)

A bag-shaped main body made of a soft resin that can be attached to the finger by inserting a finger from the opening on one end side of the tube portion toward the closing portion on the other end side, and in the circumferential direction of the tube portion of the main body portion A finger-mounted toothbrush comprising a brush portion disposed in one side region,
On the side where at least the brush part is arranged in the main body part, it has a tongue piece part extending in the direction opposite to the main body part from the opening part,
The tongue piece is formed of the same resin as the main body, and is formed integrally with the main body ,
The brush portion has a pedestal that is a partial region of the main body portion or a region raised on the surface of the main body portion, and a plurality of brush protrusions that protrude outward from the pedestal, and the thickness of the pedestal Is uniform,
The base and the brush protrusion are formed of a rubber material,
The brush protrusion is integrally raised from the surface of the pedestal, has a conical shape with a cross-sectional area that decreases from the pedestal toward the tip, and is formed in a hemispherical shape with the tip convex upward. and it has a finger-worn toothbrush. The finger-mounted toothbrush according to claim 1, wherein the brush protrusion is formed such that a tip portion has a diameter L2 of 30% to 70% of a diameter L1 at a root portion . The thickness of the tongue piece portion is greater than the thickness of the region other than the brush portion of the main body portion, and is in the range of 1.2 to 2 times the thickness of the main body portion. The finger-mounted toothbrush according to claim 1 or 2 . The tongue portion, near the boundary between the opening in both side edges of the tongue piece portion, have a constricted portion having a constricted inwardly,該括Re interval between parts are of the opening all around 20% The finger-mounted toothbrush according to any one of claims 1 to 3 , wherein the length is in the range of 45% or less . The finger-attached toothbrush according to any one of claims 1 to 4 , wherein an end region on the opposite side of the body portion is formed in a dome shape. The virtual plane formed by connecting the tips of the multiple projections brush a finger mounted toothbrush according to any one of claims 1 to 5, which is formed by a curved surface that follows the surface shape of the pedestal. Finger-worn toothbrush according to any one of claims 1 to 6 the height of the projections for multiple brush is uniform. The pedestal constituting the brush portion, the is a wall thickness of 0.5mm or more 3mm or less, the brush projection constituting the brush unit according to claim 1 to 7 the height is 1mm 5mm or more or less The finger-mounted toothbrush according to any one of the above.   The finger-attached toothbrush according to any one of claims 1 to 8, wherein the main body portion has an inner surface into which a finger is inserted as a textured surface.   The finger-attached toothbrush according to any one of claims 1 to 9, wherein the main body has a hardness based on JIS K6253-3 of 30 to 50.   The tongue piece portion is arranged on a first tongue piece portion on one side where the brush portion is arranged in the circumferential direction of the main body portion, and on the other side region in the circumferential direction of the main body portion, and from the opening portion to the main body The finger-mounted toothbrush according to any one of claims 1 to 10, further comprising a second tongue piece portion that extends to the opposite side of the portion.   The finger-attached toothbrush according to claim 11, wherein the second tongue piece portion has an extension length from the opening portion of the main body portion longer than the extension length of the first tongue piece portion.   A finger-mounted toothbrush set comprising: the finger-mounted toothbrush according to any one of claims 1 to 12; and a storage stick that is inserted through the opening of the finger-mounted toothbrush and stores the finger-mounted toothbrush.